Hello GonzoAdler,
I know rhino structure but we don't see the spaghetti structure anytime,
sometimes it's really homogenous and translucent ( have a jambiya like that )
sometimes it can be dark and really fibrous like this one sold by a serious house,
I think you would say it's just wood
...
I can do the sticky test...
Maybe the rhino hilt opinion change depending on if you have it in you hands or not
Ps: the repaired part is on the other side: without nails,looks like wax-bakelite,
and transluscent too,
can't be wood at all